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Authors: Lucchi, R. G.*
Sagnotti, L.*
Camerlenghi, A.*
Macrì, P.*
Rebesco, M.*
Pedrosa, M. T*
Giorgetti, G.*
Title: Marine sedimentary record of Meltwater Pulse 1a in the NW Barents Sea continental margin
Title of journal: Arktos, The Journal of Arctic Geosciences
Series/Report no.: /1 (2015)
Issue Date: 20-Nov-2015
DOI: 10.1007/s41063-015-0008-6
Keywords: Meltwater Pulse 1a Plumites NW Barents Sea Arctic paleomagnetism deglaciation
Abstract: The upper continental slope of the Storfjorden- Kveithola Trough Mouth Fans (NW Barents Sea) contains a several m-thick late Pleistocene sequence of plumites composed of laminated mud interbedded with sand/silt layers. Radiocarbon ages revealed that deposition occurred during about 130 years at a very high sedimentation rate of 3.4 cm a-1, at about 7 km from the present shelf break. Palaeomagnetic and rock magnetic analyses confirm the existence of a prominent, short-living sedimentary event. The plumites appear laterally continuous and were correlated with the sedimentary sequences described west of Svalbard and neighboring glacial depositional systems representing a major event at regional scale appointed to correspond to the deep-sea sedimentary record of Meltwater Pulse-1a. We also present new sedimentological and geochemical insights, and multi-beam data adding information on the palaeoenvironmental characteristics during MWP-1a and ice sheet decay in the NW Barents Sea.
Appears in Collections:04.04.04. Marine geology
Papers Published / Papers in press

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